Question

Each diagonal of a square is 7 cm long find its area

Answer 1

Answer:

Given ; length of the diagonal of the square

= 7cm

Area of the square

=(diagonal) ^2÷2

=(7)^2÷2 (its another

=49÷2 formula)

=24.5 cm^2

Hope you got it!!!

Answer 2

Answer:

PLS MARK ME AS THE BRAINLIEST

$\frac{49}{2}$

Step-by-step explanation:

Length of the diagonal = 7cm

Let the side length be x

According to pythagorean theorem x²+x² = 7²

2x² = 49

x² = $\frac{\sqrt{49} }{\sqrt{2} }$

= $\frac{7}{\sqrt{2} }$

Area of the square = $\frac{7}{\sqrt{2} }$×$\frac{7}{\sqrt{2} }$ = $\frac{49}{2}$